Build Information
Failed to build ReactiveCollectionsKit, reference main (88dff0), with Swift 6.3 for macOS (SPM) on 28 Apr 2026 10:29:49 UTC.
Build Command
env DEVELOPER_DIR=/Applications/Xcode-26.4.0.app xcrun swift build --arch arm64Build Log
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RunAll
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Builder version: 4.70.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/jessesquires/ReactiveCollectionsKit.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/jessesquires/ReactiveCollectionsKit
* branch main -> FETCH_HEAD
* [new branch] main -> origin/main
HEAD is now at 88dff0c Fixed spacing typo in `AnyCellViewModel` (#160)
Cloned https://github.com/jessesquires/ReactiveCollectionsKit.git
Revision (git rev-parse @):
88dff0cdbc5a5ad9c99831842853cf16d872e38c
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/jessesquires/ReactiveCollectionsKit.git at main
========================================
ResolveProductDependencies
========================================
Resolving dependencies ...
{
"identity": ".resolve-product-dependencies",
"name": "resolve-dependencies",
"url": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies",
"version": "unspecified",
"path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies",
"traits": [
"default"
],
"dependencies": [
{
"identity": "reactivecollectionskit",
"name": "ReactiveCollectionsKit",
"url": "https://github.com/jessesquires/ReactiveCollectionsKit.git",
"version": "unspecified",
"path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/ReactiveCollectionsKit",
"traits": [
"default"
],
"dependencies": [
]
}
]
}
Fetching https://github.com/jessesquires/ReactiveCollectionsKit.git
[1/5248] Fetching reactivecollectionskit
Fetched https://github.com/jessesquires/ReactiveCollectionsKit.git from cache (1.10s)
Creating working copy for https://github.com/jessesquires/ReactiveCollectionsKit.git
Working copy of https://github.com/jessesquires/ReactiveCollectionsKit.git resolved at main (88dff0c)
warning: '.resolve-product-dependencies': dependency 'reactivecollectionskit' is not used by any target
Found 0 product dependencies
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Build
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Selected platform: macosSpm
Swift version: 6.3
Building package at path: $PWD
https://github.com/jessesquires/ReactiveCollectionsKit.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-26.4.0.app xcrun swift build --arch arm64
Building for debugging...
[0/2] Write sources
[1/2] Write swift-version--6988338F2F200930.txt
error: emit-module command failed with exit code 1 (use -v to see invocation)
[3/23] Emitting module ReactiveCollectionsKit
/Users/admin/builder/spi-builder-workspace/Sources/CellEventCoordinator.swift:15:8: error: no such module 'UIKit'
13 |
14 | import Foundation
15 | import UIKit
| `- error: no such module 'UIKit'
16 |
17 | /// Conforming objects are responsible for handling various cell events.
[4/25] Compiling ReactiveCollectionsKit ViewRegistrationProvider.swift
/Users/admin/builder/spi-builder-workspace/Sources/CellEventCoordinator.swift:15:8: error: no such module 'UIKit'
13 |
14 | import Foundation
15 | import UIKit
| `- error: no such module 'UIKit'
16 |
17 | /// Conforming objects are responsible for handling various cell events.
[5/25] Compiling ReactiveCollectionsKit ViewRegistrationViewType.swift
/Users/admin/builder/spi-builder-workspace/Sources/CellEventCoordinator.swift:15:8: error: no such module 'UIKit'
13 |
14 | import Foundation
15 | import UIKit
| `- error: no such module 'UIKit'
16 |
17 | /// Conforming objects are responsible for handling various cell events.
[6/25] Compiling ReactiveCollectionsKit CollectionViewModel.swift
/Users/admin/builder/spi-builder-workspace/Sources/CellEventCoordinator.swift:15:8: error: no such module 'UIKit'
13 |
14 | import Foundation
15 | import UIKit
| `- error: no such module 'UIKit'
16 |
17 | /// Conforming objects are responsible for handling various cell events.
[7/25] Compiling ReactiveCollectionsKit DebugDescriptions.swift
/Users/admin/builder/spi-builder-workspace/Sources/CellEventCoordinator.swift:15:8: error: no such module 'UIKit'
13 |
14 | import Foundation
15 | import UIKit
| `- error: no such module 'UIKit'
16 |
17 | /// Conforming objects are responsible for handling various cell events.
[8/25] Compiling ReactiveCollectionsKit DiffableViewModel.swift
/Users/admin/builder/spi-builder-workspace/Sources/CellEventCoordinator.swift:15:8: error: no such module 'UIKit'
13 |
14 | import Foundation
15 | import UIKit
| `- error: no such module 'UIKit'
16 |
17 | /// Conforming objects are responsible for handling various cell events.
[9/25] Compiling ReactiveCollectionsKit EmptyViewProvider.swift
/Users/admin/builder/spi-builder-workspace/Sources/CellEventCoordinator.swift:15:8: error: no such module 'UIKit'
13 |
14 | import Foundation
15 | import UIKit
| `- error: no such module 'UIKit'
16 |
17 | /// Conforming objects are responsible for handling various cell events.
[10/25] Compiling ReactiveCollectionsKit ViewRegistration.swift
/Users/admin/builder/spi-builder-workspace/Sources/CellEventCoordinator.swift:15:8: error: no such module 'UIKit'
13 |
14 | import Foundation
15 | import UIKit
| `- error: no such module 'UIKit'
16 |
17 | /// Conforming objects are responsible for handling various cell events.
[11/25] Compiling ReactiveCollectionsKit ViewRegistrationMethod.swift
/Users/admin/builder/spi-builder-workspace/Sources/CellEventCoordinator.swift:15:8: error: no such module 'UIKit'
13 |
14 | import Foundation
15 | import UIKit
| `- error: no such module 'UIKit'
16 |
17 | /// Conforming objects are responsible for handling various cell events.
[12/25] Compiling ReactiveCollectionsKit Logger.swift
/Users/admin/builder/spi-builder-workspace/Sources/CellEventCoordinator.swift:15:8: error: no such module 'UIKit'
13 |
14 | import Foundation
15 | import UIKit
| `- error: no such module 'UIKit'
16 |
17 | /// Conforming objects are responsible for handling various cell events.
[13/25] Compiling ReactiveCollectionsKit SectionViewModel.swift
/Users/admin/builder/spi-builder-workspace/Sources/CellEventCoordinator.swift:15:8: error: no such module 'UIKit'
13 |
14 | import Foundation
15 | import UIKit
| `- error: no such module 'UIKit'
16 |
17 | /// Conforming objects are responsible for handling various cell events.
[14/25] Compiling ReactiveCollectionsKit SupplementaryFooterViewModel.swift
/Users/admin/builder/spi-builder-workspace/Sources/CellEventCoordinator.swift:15:8: error: no such module 'UIKit'
13 |
14 | import Foundation
15 | import UIKit
| `- error: no such module 'UIKit'
16 |
17 | /// Conforming objects are responsible for handling various cell events.
[15/25] Compiling ReactiveCollectionsKit SupplementaryHeaderViewModel.swift
/Users/admin/builder/spi-builder-workspace/Sources/CellEventCoordinator.swift:15:8: error: no such module 'UIKit'
13 |
14 | import Foundation
15 | import UIKit
| `- error: no such module 'UIKit'
16 |
17 | /// Conforming objects are responsible for handling various cell events.
[16/25] Compiling ReactiveCollectionsKit SupplementaryViewModel.swift
/Users/admin/builder/spi-builder-workspace/Sources/CellEventCoordinator.swift:15:8: error: no such module 'UIKit'
13 |
14 | import Foundation
15 | import UIKit
| `- error: no such module 'UIKit'
16 |
17 | /// Conforming objects are responsible for handling various cell events.
[17/25] Compiling ReactiveCollectionsKit UICollectionView+Extensions.swift
/Users/admin/builder/spi-builder-workspace/Sources/CellEventCoordinator.swift:15:8: error: no such module 'UIKit'
13 |
14 | import Foundation
15 | import UIKit
| `- error: no such module 'UIKit'
16 |
17 | /// Conforming objects are responsible for handling various cell events.
[18/25] Compiling ReactiveCollectionsKit DiffableDataSource.swift
/Users/admin/builder/spi-builder-workspace/Sources/CellEventCoordinator.swift:15:8: error: no such module 'UIKit'
13 |
14 | import Foundation
15 | import UIKit
| `- error: no such module 'UIKit'
16 |
17 | /// Conforming objects are responsible for handling various cell events.
[19/25] Compiling ReactiveCollectionsKit DiffableSnapshot.swift
/Users/admin/builder/spi-builder-workspace/Sources/CellEventCoordinator.swift:15:8: error: no such module 'UIKit'
13 |
14 | import Foundation
15 | import UIKit
| `- error: no such module 'UIKit'
16 |
17 | /// Conforming objects are responsible for handling various cell events.
[20/25] Compiling ReactiveCollectionsKit CollectionViewConstants.swift
/Users/admin/builder/spi-builder-workspace/Sources/CellEventCoordinator.swift:15:8: error: no such module 'UIKit'
13 |
14 | import Foundation
15 | import UIKit
| `- error: no such module 'UIKit'
16 |
17 | /// Conforming objects are responsible for handling various cell events.
[21/25] Compiling ReactiveCollectionsKit CollectionViewDriver.swift
/Users/admin/builder/spi-builder-workspace/Sources/CellEventCoordinator.swift:15:8: error: no such module 'UIKit'
13 |
14 | import Foundation
15 | import UIKit
| `- error: no such module 'UIKit'
16 |
17 | /// Conforming objects are responsible for handling various cell events.
[22/25] Compiling ReactiveCollectionsKit CollectionViewDriverOptions.swift
/Users/admin/builder/spi-builder-workspace/Sources/CellEventCoordinator.swift:15:8: error: no such module 'UIKit'
13 |
14 | import Foundation
15 | import UIKit
| `- error: no such module 'UIKit'
16 |
17 | /// Conforming objects are responsible for handling various cell events.
[23/25] Compiling ReactiveCollectionsKit CellEventCoordinator.swift
/Users/admin/builder/spi-builder-workspace/Sources/CellEventCoordinator.swift:15:8: error: no such module 'UIKit'
13 |
14 | import Foundation
15 | import UIKit
| `- error: no such module 'UIKit'
16 |
17 | /// Conforming objects are responsible for handling various cell events.
[24/25] Compiling ReactiveCollectionsKit CellViewModel.swift
/Users/admin/builder/spi-builder-workspace/Sources/CellEventCoordinator.swift:15:8: error: no such module 'UIKit'
13 |
14 | import Foundation
15 | import UIKit
| `- error: no such module 'UIKit'
16 |
17 | /// Conforming objects are responsible for handling various cell events.
[25/25] Compiling ReactiveCollectionsKit Collection+Extensions.swift
/Users/admin/builder/spi-builder-workspace/Sources/CellEventCoordinator.swift:15:8: error: no such module 'UIKit'
13 |
14 | import Foundation
15 | import UIKit
| `- error: no such module 'UIKit'
16 |
17 | /// Conforming objects are responsible for handling various cell events.
BUILD FAILURE 6.3 macosSpm